This DC/DC step-down voltage converter is based on MP2037, it converts input voltage between 4.5V and 23V into a smaller voltage between 1V and 17V, capable of driving a 1.8A load with excellent line and load regulation.

Micro hydro power is clean, renewable energy. Here is a G1/2 micro hydro generator which can supply stably output voltage and output current with the help of one voltage stabilizing circuit and one rechargeable battery.